GitHub Advisory DatabaseGHSA-XQPP-26PP-2365XSS vulnerability in Jenkins Markdown Formatter Plugin
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
26.9%
Jenkins Markdown Formatter Plugin 0.1.0 and earlier uses a Markdown library to parse Markdown that does not escape crafted link target URLs.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to edit any description rendered using the configured markup formatter.
Jenkins Markdown Formatter Plugin 0.2.0 uses a different Markdown library that is not affected by this problem.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| io.jenkins.plugins | markdown-formatter | * | cpe:2.3:a:io.jenkins.plugins:markdown-formatter:*:*:*:*:*:*:*:* |
References
www.openwall.com/lists/oss-security/2021/05/25/3
github.com/advisories/GHSA-xqpp-26pp-2365
github.com/jenkinsci/markdown-formatter-plugin/commit/6b283a5bba3424fd5174b92e7ad8724cdbdf596c
nvd.nist.gov/vuln/detail/CVE-2021-21660
www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198
www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
26.9%